Constraining imagination by knowledge does not make it redundant. We rarely know an explicit formula that tells us what to do in a complex situation. We have to work out what to do by thinking through the possibilities in ways that are simultaneously imaginative and realistic, and not less imaginative when more realistic. Knowledge, far from limiting imagination, enables it to serve its central function. (amazing work at NYT from Timothy Williamson)
The piece hyperlinked above is a must-read, especially for teachers. Isn't the mainstay of teachers helping students use and expand their imaginations, so that we might lead better lives?